Instructions
Online calendar: Howto for Thunderbird/Lightning and Sunbird
- Step 1: copy the URL of the calendar
- Step 2: create a new calendar in Thunderbird/Lightning or Sunbird
- Step 3: choose calendar type: network
- Step 4.1: choose calendar format: iCal
- Step 4.2: paste the URL into the field: address
- Step 5: choose a proper name and color
- Step 6: finish